730793
胶态银溶液
nanoparticles, 20 nm particle size, 0.02 mg/mL in aqueous buffer, contains sodium citrate as stabilizer
别名:
Colloidal silver
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关于此项目
线性分子式:
Ag
化学文摘社编号:
分子量:
107.87
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
form
nanoparticles
Quality Level
contains
sodium citrate as stabilizer
concentration
0.02 mg/mL in aqueous buffer
refractive index
n20/D 1.333
particle size
20 nm
density
0.986 g/mL at 25 °C
fluorescence
λem 401 nm FWHM 66 nm
storage temp.
2-8°C
SMILES string
[Ag]
InChI
1S/Ag
InChI key
BQCADISMDOOEFD-UHFFFAOYSA-N
General description
我们的20 nm银纳米粒子非常适合生物传感和荧光成像应用。这些球形粒子在水性柠檬酸盐缓冲液中稳定，可防止聚集。在特定波长激发时，银纳米粒子由于其表面的传导电子发生集体振荡（称为表面等离子体共振 (SPR)），因此可以有效吸收和散射光。与吸收较长波长（500+ nm）的金纳米粒子不同，银纳米粒子吸收波长较短（400-450 nm）。我们的纳米粒子粒径为 20 nm，由于其高单分散性，其峰值吸收波长(λ)为 400 nm，半峰全宽 (FWHM) 为 66 nm。这些光电特性与高表面积相结合，使它们能够有效检测生物分子、病原体和环境污染物。
Application
- 磺胺类药物在胶体银分散体上的表面增强拉曼分析。：研究探讨了胶体银分散体在磺胺类药物表面增强拉曼散射（SERS）分析中的应用。该研究证明了银纳米颗粒在增强拉曼信号方面的潜力，使其成为检测和分析低浓度药物的宝贵技术（Sutherland et al., 1990）。
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
存储类别
12 - Non Combustible Liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
商品
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Lingting Huang et al.
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全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 730793-25ML | 04061832865300 |
| 730793-250ML | 04065273542820 |